21146796 has 36 divisors (see below), whose sum is σ = 58314984. Its totient is φ = 6408000.

The previous prime is 21146789. The next prime is 21146803. The reversal of 21146796 is 69764112.

It is an interprime number because it is at equal distance from previous prime (21146789) and next prime (21146803).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 21146796.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26305 + ... + 27096.

Almost surely, 2^21146796 is an apocalyptic number.

It is an amenable number.

21146796 is an abundant number, since it is smaller than the sum of its proper divisors (37168188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21146796 is a wasteful number, since it uses less digits than its factorization.

21146796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53422 (or 53417 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 21146796 is about 4598.5645586422. The cubic root of 21146796 is about 276.5337811221.

The spelling of 21146796 in words is "twenty-one million, one hundred forty-six thousand, seven hundred ninety-six".